Results :
The frequency with which the WF-optimized and WF-guided group attained a refractive error within ±0.25 diopters of emmetropia was not significantly different between groups (p >0.05). Furthermore, the frequency with which the WF-guided and WF-optimized groups achieved postoperative UDVA of ≥20/16 or ≥20/20 and the frequency with which the groups lost 1 or 2 or more lines or maintained their preoperative CDVA were not statistically different from each other (all P >0.05). There were no statistically significant differences in UDVA, CDVA, contrast sensitivity, astigmatism, coma, trefoil, or higher-order root mean square error between the groups (all P >0.05).